(19)

(11)

EP 3 938 706 A1

(12)

(43) Date of publication: 19.01.2022 Bulletin 2022/03 (21) Application number: 20712693.9 (22) Date of filing: 06.03.2020

(51) International Patent Classification (IPC):  F23C 10/01(2006.01) B01J 23/00(2006.01) B01J 23/90(2006.01) C10G 35/10(2006.01) B01J 21/00(2006.01) B01J 23/70(2006.01) C10G 35/12(2006.01) C10G 47/28(2006.01) (52) Cooperative Patent Classification (CPC): C10G 9/30; F23C 10/005; F23C 2206/10; F23C 10/01; Y02E 20/34; C10G 9/36; C10G 35/12 (86) International application number: PCT/IB2020/051978 (87) International publication number: WO 2020/183327 (17.09.2020 Gazette 2020/38)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 13.03.2019 CA 3036625 (71) Applicant: Nova Chemicals (International) S.A. 1700 Fribourg (CH)	(72) Inventors: SIMANZHENKOV, Vasily Calgary, Alberta T3G 5C3 (CA) DEY, Rabi Calgary, Alberta T2Z 1A1 (CA) FARAG, Hany Calgary, Alberta T3C 2W4 (CA) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)